Removed the two screws from the old vent grille and then removed the old vent grille.Since the old vent grille was off I removed the charcoal filter. Replace the old charcoal filter with a new charcoal filter it slide in place ( no screws ) and put the new grille vent in place and screwed it down.

Ordered part from this site and they shipped it the same day it was ordered. I bought it from them since it was an original Whirlpool part. It was also stated on the package that it was an original mfg part. Very easy to replace in the microwave.